Heater and muffler.



5. L. ANDERSON.

HEATER AND MUFFLER` APPLICATION FILED APR. I2, 1916.

H I7 w M @Y m11 l PQ g & 8

5 v a ow 1 Patented Oct. 10, 1916.

JOSEPH L. ANDERSON, OF TEXAS, MARYLAND.

HEATER AND MUFFLER.

Specification of Letters Patent.

Patented oet. 1o, 1916.

Application filed April 12, 1916. Serial No. 90,613.

T o /LZZ whom t may conce/rn.'

Be it known that I, JOSEPH L. ANDERSON, a citizen of the United States, residing at Texas, county ofBaltimore, and State of Maryland, have invented certain new and useful Improvements in Heaters and Mufflers, of which the following is a specification.

The present invention hasy for its object the provision of improvements on the heater and muffler of my Patent No. 1,173,403, dated February 29, 1916, among which are, first, to construct the shell or body and the partitions so that the exhaust gases will be choked down as they approach the exhaust or delivery port or outlet of the heater to obtain from them a maximumheat value; second, to connect the partitions tothe shell and provide removable walls for either the ends or sides of the shell, thus affording a tight construction with adaptability for easy cleaning, without removing the partitions, on taking off the removable walls; third, the provision of fresh air inlet ports in the walls ofthe shell to admit air to the heat chamber and cause a free passing olf of the heat which is radiated into said chamber from the interior of the shell, thus insuring adequate delivery of heat to the vehicle; fourth, to provide a valve control for the admission of the exhaust gases to the heater in connection with a novel operating device therefor which is normally disposed below or flush with the floor of the car and interposes no obstruction, but may be readily manipulated to open or close the valve; fifth, to generally improve the construction of theiheater and mufller of Inyprinciple thereof may be embodied in modified constructions.

In the accompanying drawings: Figure 1 is a detail vertical section with parts broken away, taken on line 1-1, Fig. 3, showing theinventicn and the controlling means therefor; Fig. 2, a longitudinal section through the heater and muffler: Fig. .3, lai iiontelevaticn; Fig. .4, af' detalof: another form of valve which may be used; Fig. 5, a perspective showing the invention in use on an automobile, a portion of which is shown; and Fig. 6, a detail of one of the fastening bolts and parts of the heater and muffler connected thereby.

The body or shellfl'of the heater or mufiler may be of cast iron or sheet metal, preferably the latter, and provided with longitudinally extending outstanding flanges 2 and similar end flanges 3. The partition 4 which defines, in connection with the perferated register or top plate 5, the heat chamber 6, is of dish-like or pan-shaped form, being provided with longitudinal side flanges 7 and end flanges 8 which lie underneath the plate 5 and are welded or otherwise tightly connected to it to prevent the exhaust from having access either to the compartment 6 or the interior of the automobile. Bolts 9 connect the flanges of -partition 4 and the plate 5 to the shell. The removable end walls 10 are provided with fianges 11 at their upper edges which are connected by certain of the bolts 9 to the end flanges 8 and the top plate 5. movable end walls 10 are also bolted to the end flanges 3. Asbestos facings or sheets 12 are interposed between the end walls. 10 and the interior of the shell 1 and also between the flanges previously described so that joints are provided which will not permit the passage of the heat at these points.

The partitions 13, of .which there may be as many or as few as desired, are provided with lo-ngitudinal flanges 14 which may be spot-welded, riveted, or otherwise connected to the sides of the shell 1 so that they will be permanently attached thereto. At their ends, these partitions are preferably provided with narrc-w flanges l5 so that they will form a tight joint with the asbestfs The re sheets 12. The partitions 13 are spaced 1 relatively close together, the intermediate compartments or chambers therebetween being shown at 16. The chamber 17 between the uppermost partiticn 13 and the partition 4, is of considerably greater depth than the f f compartments 16. The inlet for the exhaust gases, as shown at 18, admits such gases kto the compartment 17, where the greatest heating effect and radiation will recur through the partition 4 into the heatchamber 6 and thence through the perforations .or .openingstLi ini the platev 5. L The gases. en"

tering at one end of the heater, travel to the opposite end portion thereof before diving through one or more openings 19 in the uppermost partition 13, thence passing in the opposite direction through the uppermost compartment 16 and diving through one or more openings 2O in the next lower partition 13, and then back in the opposite direction thro-ugh the compartment 16 therebelow and so on, according to the number' of partitions 13 employed, until the exhaust gases finally pass out through the opening 21 into any suitable exhaust nozzle or pipe 22. By providing a relatively large compartment 17 a maximum radiation of heat from the exhaust gases is obtained when they enter the heater and mufller, and by Aproviding relatively shallow compartments 16, which may or may not be of the same depth as each other, the gases are choked down so that the rapidity of their travel is diminished and they are retained in the heater and mufller a sufficient period to obtain from them a maximum portion of the heat remaining therein, which is then radiated through the compartment 17 into the compartment or chamber 6 and out through the openings 52L in the register plate. rEhe choking down of the O'ases enables me to obtain a maximum heat radiation or value from the exhaust 0rases, and as I am aware that this can be accomplished in various ways, I do not limit myself to the precise arrangement of partitions and chambers to accomplish that end, except where so specified in the claims.

The ports or inlet openings 23 which are provided in the front face of the shell 1, are positioned to admit fresh air from the frontl of the car into the heat chamber 6 to afford a draft or circulation which will insure the carrying ed, through the openings 5, of the heat in the chamber 6. By providing these openings 23, 1 ain-enabled to prevent heat in the chamber 6 from becoming dead and the heating effect is considerably enhanced.

The inlet pipe 18 is connected to the usual exhaust pipe 24#- and preferably has a branch thereof, the exhaust pipe, continued toward the rear of the automobile, as indicated at 24a. The branch pipe 25 which connects pipe 24 to the inlet 13, is provided with either a rotary valve 26, as shown in Fig. 1, or a butterfly damper 27, as in Fig. Ll. Other forms of valves could be used.

Referring first to Fig. 1, the stem 28 of the valve 26 carries a loose, vertically slidable sleeve 29 which has a collar 30 at its lower end, and at its upper end is provided with a button or finger-hold 31. intermediate the collar 30 and the finger-hold 31 the sleeve has a longitudinally extending slot 32. The stem 28 is provided with a pin 33 which is loosely reoeivedin the slot 32. The -floor of the automobile is shown at 34. Countersunk therein is a flanged bushing 35,between whose lower face and the collar 30 is interposed a. coil spring 36 which holds the sleeve 29 pressed downwardly, and retracts the finger-hold or button 31 into the bushing or cup 35 so that it is below, or at least, flush with the upper surface of the floor 34 and consequently no obstruction is offered which would cause occupants of the vehicle to trip.

In Fig. l, the damper valve 27 has a stem 21a provided with a pin 271. The operating finger-hold or button 31a has a slot 32a which receives the pin 271. The finger-hold or handle 31a can be raised or lowered in the same manner as with the operating device of F ig. 1 and if desired, spring means may be employed to hold the finger-hold 31a in depressed position. The finger-hold 31*L may be adapted to enter a cup or bushing such as shown at 35 in F ig. 1 so that it will be flush with the floor of the Tehicle.

Normally7 the handle or finger-hold 31 is retracted into the cup 35 and when it is desired to open or close the valve 26, the fingerhold or handle 31 is Orasped and pulled outwardly for purposes of manipulation. On the release of said finger-hold, the spring snaps it back into the cup or bushing 35.

rthe valve 26 being open to the desired extent to admit such portion of the gases as may be needed to afford the requisite heat, the gases pass into the compartment 17 immediately underneath the partition 4 and the heat of said gases is directly transmitted to the heat chamber or compartment G and thence pass through the openings 5a. The draft of air through the ports 23 causes the heat to be rapidly taken oli' through the openings 5a. Passing the length of the compartment 17, the gases dive down through the openings 19 and thence return in the opposite direction through the upper compartment 16, thence passing through the openings 2O and into the lower compartment 16, whence they pass to the exhaust or outlet 22. As previously described, the clicking down of the rate of travel of the exhaust gases by virtue of the relative shallowness of the compartments 16, causes the gases to be retained for a sufficient length of time in the compartments to relieve them of the greater portion of their heat, which is thus transmitted to the chamber 6, by radiation, and thence through the openings 5a to the car.

Then it is desired to clean the deposits from the interior of the heater, the end walls 10 are removed, whereupon the shell or body 1 and the partitions 13 which are connected thereto, may be cleaned from end to end. Instead of having the end Walls 10 removable, the sides could be removable and the end walls fixed.

The upper face of the cup or bushing 35 may be provided with graduations and indicia to indicate positions of the finger'- hold 3l representing full heat; half heat, etc.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

l. A heater and muffler comprising a flanged body or shell, a pan-shaped partition within the body or shell which denes a heat chamber adjacent said top or radiating plate, said partition having a flange overlapping the flange on the body, a removable top or radiating plate secured to the flange of the pan-shaped partition and to the body one or more additional partitions defining compartments in said body or shell, there being provided means for communication between said last-named compartments, the aforesaid partitions being permanently secured to the Walls of the body or shell, means for admitting a heating medium to one of the compartments and taking it off from another compartn ment, and other walls removably secured to said body or shell and adapted to be taken off, for purposes of cleaning the heater and muffler, without disturbing the arrangement of the partitions.

2. A self-contained, unitary heater and muffler comprising a body or shell having a top plate and a plurality of compartments of different sizes, in communication with each other, means for admitting a heating medium to a larger one of the compartments, means for taking off the heating medium from a smaller compartment, said compartments being adapted to choke down the flow or travel of' the heating medium, and a partition defining a heat compartment in vconnection with the top plate, said compartment being sealed from communication with the remainder of' the body or shell.

3. A selfcontained, unitary heater or muffler comprising a body or shell having a top plate and a plurality of compartments of different sizes, said compartments being in communication, means for admitting a heating medium to the largest of said compartments, and for taking ofi' said heating medium from the smallest of said compartments, whereby the flowy or travel of the heating medium is choked down from its point of entry to its point of exit from the heater or muffler, and a partition defining a heat compartment in connection with the top plate, said compartment being sealed from communication with the remainder of the body or shell.

4. A self-contained, unitary heater or s muffler comprising a body or shell having an apertured top plate, a partition defining a heat compartment in connection with said top plate which is sealed from communication with the remainder of the body or shell, one or more additional partitions defining two or more compartments vof different sizes in the body or shell, the largest one of which is located adjacent the partition firstnamed, means for admitting a heating medium to the large compartment, and meansy for taking off the heating medium from a smaller compartment, said compartments being in communication, whereby the flow or travel of the heating medium is choked/down from its point of' entry to its point of exit from the heater or muffler.

5. A self-contained, unitary heater or muffler comprising a body or shell having an apertured top plate, a partition defining a heat compartment in connection with said top plate which is sealed from communication with the remainder of the body or shell, one or more additional partitions defining two or more compartments of different sizes in the body or shell, the largest one of which is located adjacent the partition first-named, means for admitting a heating medium to the large compartment, and means for taking off the heating medium from a smaller compartment, said compartments being in f JOSEPH L. ANDERSON.

Copies o! this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

